LM555 LED Flasher
About the LM555 LED Flasher PCB
LM555 LED Flasher is an open source PCB design by Pluze, published on GitHub under the MIT license. It is a 2-layer board measuring 40 × 25 mm, with 8 components from 8 distinct parts.
Other key parts include the R1218N041A-TR-FE. By type, the board carries 3 resistors, 2 capacitors, 1 IC, 1 battery holder and 1 diode.
From the project
Reference and experimental KiCad PCB designs with reusable agent workflows
An educational astable 555 timer that flashes one LED. The design adapts the classroom topology into a compact, readable, all-SMT KiCad project intended for simple prototype fabrication.
- U1: LM555xM, SOIC-8. - R1: 1 kΩ, 0603. - R2: 100 kΩ, 0603. - R3: 330 Ω LED current limiter, 0603. - C1: 10 µF polarized SMD aluminum electrolytic, 5 × 5.3 mm. - C2: 10 nF, 0603, control-voltage bypass. - D1: generic indicator LED, 0805. - BT1: 2-pin JST-PH SMD power connector.
Main components on the LM555 LED Flasher
LM555 LED Flasher bill of materials (BOM)
8 components, 8 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | R1218N041A-TR-FE LM555xM Nisshinbo | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | 5-9V | JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_Vertical | BT1 |
| 1 | LED | LED_0805_2012Metric | D1 |
| 1 | GRM21BR71A105KA01L 10uF Murata | CP_Elec_5x5.3 | C1 |
| 1 | C0805C224K5RACTU 10nF KEMET | C_0603_1608Metric | C2 |
| 1 | RC0805FR-07536RL 1k Yageo | R_0603_1608Metric | R1 |
| 1 | 100k | R_0603_1608Metric | R2 |
| 1 | 330R | R_0603_1608Metric | R3 |
LM555 LED Flasher design files
The KiCad project lives in the Pluze/pcb repository on GitHub; these links point at the commit this page was built from.
LM555 LED Flasher: common questions
How big is the LM555 LED Flasher PCB?
The LM555 LED Flasher measures 40 × 25 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the LM555 LED Flasher?
8 components, from 8 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the LM555 LED Flasher design files?
From the Pluze/pcb repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the LM555 LED Flasher design in my own project?
Yes, under the terms of its MIT license, which Pluze chose for the repository.
